MT4 and MT5 are the best trading platform. most of the broker providing the facility to trade on then. I like MT4, but have an experience about web trader and I also found best because in web trader when you open or close any position it never ask for re quote. Web trade fast and quick.
Same goes to me, I have also used few other trading terminals from other brokers but mt4 is the most easiest and interesting trading terminal. I like the mt4 trading terminal for my daily trading. The most important thing in mt4 terminal is the availability of news.